#VU32323 Heap-based buffer overflow in pidgin-otr - CVE-2016-2851
Published: April 8, 2016 / Updated: July 29, 2020
Vulnerability identifier: #VU32323
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2016-2851
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
pidgin-otr
pidgin-otr
Software vendor:
otr.cypherpunks.ca
otr.cypherpunks.ca
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms. A remote attacker can use a series of large OTR messages to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update to version 4.1.1.
External links
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html
- http://seclists.org/fulldisclosure/2016/Mar/21
- http://www.debian.org/security/2016/dsa-3512
- http://www.securityfocus.com/archive/1/537745/100/0/threaded
- http://www.securityfocus.com/bid/84285
- http://www.ubuntu.com/usn/USN-2926-1
- https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html
- https://security.gentoo.org/glsa/201701-10
- https://www.exploit-db.com/exploits/39550/
- https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/